Hello,
I'm very new to app-engine but I'm used to JPA and I can't find a way
to use Open EntityManager in View with app-engine and JPA.
My code is structured like this:
DomainDAO -> This is where I access the datastore through JPA
DomainService -> Some business logic before saving
DomainController -> To show the domain on the page
This is a sample method of one of my DAOs:
public Guardian findByGoogleUserId(String userId) {
if (userId) {
def result = jpaTemplate.findByNamedParams("select g from
Guardian g where g.googleUserId = :userId", [userId: userId])
if (result) {
return result[0]
}
}
return null
}
I'm using Spring therefore I tried to configure the
OpenEntityManagerInViewInterceptor, if this works as it's supposed to
I shouldn't get JDODetachedFieldAccessException anymore, but I still
get it.
Is it possible to implement this pattern with app-engine and JPA?
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